These two drywells represent my stormwater management system. Constructed out of precast concrete, each drywell is 9' tall by 6' wide. The drywells are tied together with a 12 pipe, then piped back to the roof drain. The drywells also will catch surface runoff water from the driveway and yard. The slots in the sides of the drywells allow water to seep into the 2' surrounding bed of large stone, then percolate into the soil.
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